11439390054 has 32 divisors (see below), whose sum is σ = 23674245120. Its totient is φ = 3680625312.

The previous prime is 11439390031. The next prime is 11439390119. The reversal of 11439390054 is 45009393411.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11439389994 and 11439390021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 861147 + ... + 874329.

It is an arithmetic number, because the mean of its divisors is an integer number (739820160).

Almost surely, 2^11439390054 is an apocalyptic number.

11439390054 is an abundant number, since it is smaller than the sum of its proper divisors (12234855066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11439390054 is a wasteful number, since it uses less digits than its factorization.

11439390054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18204.

The product of its (nonzero) digits is 58320, while the sum is 39.

The spelling of 11439390054 in words is "eleven billion, four hundred thirty-nine million, three hundred ninety thousand, fifty-four".